This way, if you forgot to logout after accessing your account from a friend's phone or a public computer, you can access your account from your own and terminate remotely the active session.
The feature will be rolled out gradually, and this is how it will look like:
The information provided for each active session will consist of the login time, device name (if you have named it), a ballpark location derived from the IP address, and the browser and operating system on the used device.
This way, even if someone accesses you account after you or your account credentials get phished and used, you can lock out those users by terminating the session remotely and changing the password for the account.